CBSE Board Practice

Class VI Class VII Class VIII Class IX Class X
CBSE Grade VII - Exponents and Powers
Question 1
1.
Represent the given large number in standard form
-656173700000
✕
10 4
 
  • -6.561737
    ✕
    10 16
     
  • -6.561737
    ✕
    10 15
     
  • -6.561737
    ✕
    10 13
     
  • -6.561737
    ✕
    10 14
     
  • -6.561737
    ✕
    10 17
     
Question 2
2.
    • 0
      0
    • =
  • -1
  • ∞
  • 0
  • 1
  • undefined
Question 3
3.
    • The expanded form of
    • (
      3
      4
      g
      		)
      3
       
    • is
  • 3
    4
    g
    ✕
    3
    4
    g
    ✕
    3
    4
    g
    ✕
    3
    4
    g
  • 3
    4
    g
    ✕
    3
    4
    g
    ✕
    3
    4
    g
    ✕
    3
    4
    g
    ✕
    3
    4
    g
  • 3
    4
    g
    ✕
    3
    4
    g
  • 3
    4
    g
  • 3
    4
    g
    ✕
    3
    4
    g
    ✕
    3
    4
    g
Question 4
4.
    •    
      -8
      (
      -5
      2
      )
           
    • =
  •    
    8
    (
    -2
    5
    )
         
  •    
    8
    (
    -4
    5
    )
         
  •    
    10
    (
    -2
    5
    )
         
  •    
    9
    (
    -2
    5
    )
         
  •    
    7
    (
    -2
    5
    )
         
Question 5
5.
    • Simplify the expression
    • 3 -7
       
    • ✕
    • 3 -4
       
  • 3 -10
     
  • 3 -12
     
  • 3 -11
     
  • 3 -13
     
  • 6 -11
     
Question 6
6.
Represent the given large number in standard form
9238956000
✕
10 3
 
  • 9.238956
    ✕
    10 14
     
  • 9.238956
    ✕
    10 10
     
  • 9.238956
    ✕
    10 11
     
  • 9.238956
    ✕
    10 13
     
  • 9.238956
    ✕
    10 12
     
Question 7
7.
    • Simplify
    • (-3) -3
       
      		✕
      5 -2
       
      		✕
      5 -3
       
      		✕
      (-5) -3
       
      2 -2
       
      		✕
      (-2) -3
       
      		✕
      4 -3
       
  • -1
    		✕
    2 11
     
    3 3
     
    		✕
    2 8
     
  • -1
    		✕
    2 11
     
    3 3
     
    		✕
    5 8
     
  • -1
    		✕
    2 10
     
    3 3
     
    		✕
    5 8
     
  • (-1) 2
     
    		✕
    2 11
     
    3 3
     
    		✕
    5 8
     
  • -1
    		✕
    2 11
     
    3 3
     
    		✕
    8 8
     
Question 8
8.
    • Write the given number in usual form
    • -9.175944
      ✕
      10 -6
       
  • -0.0009175944
  • -0.000009175944
  • -0.00009175944
  • -0.00000009175944
  • -0.0000009175944
Question 9
9.
    • Find the value of
    • (-3) 5
       
  • -246
  • -244
  • -242
  • -240
  • -243
Question 10
10.
    • 5
      0
    • =
  • -1
  • 0
  • undefined
  • ∞
  • 1